What is "sleep age" and how is it related to longevity?

“Sleep age” is the characteristics of sleep that are characteristic of people in different age categories. Specialists

analyzed sleep data from 10,699 men and women aged 20 to 90 to explore this issue further.
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Experts used machine learning to develop a system that detects the age of sleep and how its characteristics change.

Scientists have concluded that frequent awakeningsovernight are an important factor in predicting all-cause mortality. It is also important for specialists to pay attention to a decrease in the effectiveness of naps and a reduction in the REM sleep phase.

At the same time, sleep age can be improved:To do this, it is advised to fall asleep and wake up at a time that is familiar to most people, sleep in a dark room and regularly exercise the body with physical activity. You should also avoid alcohol, caffeine and overeating before bed.